PT-2022-3185 · Google · Android

Published 2022-06-01 · Updated 2022-06-24 · CVE-2022-20145

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Android versions Android-11

Description The issue is related to a protocol downgrade attack in the startLegacyVpnPrivileged component of Vpn.java, which could allow retrieval of VPN credentials. This might lead to remote escalation of privilege if a malicious Wi-Fi access point is used, requiring no additional execution privileges. User interaction is not necessary for exploitation. The vulnerability is associated with inadequate access control, potentially enabling a remote attacker to elevate their privileges.

Recommendations For Android version Android-11, consider restricting access to the startLegacyVpnPrivileged component of Vpn.java until a patch is available. As a temporary workaround, avoid using legacy VPN connections on affected devices until the issue is resolved.

Fix

Weakness Enumeration

CWE-264

Related Identifiers

ASB-A-201660636

BDU:2022-03866

CVE-2022-20145

Affected Products

Android

References · 7

• https://osv.dev/vulnerability/ASB-A-201660636 · Vendor Advisory
• https://source.android.com/security/bulletin/2022-06-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-20145 · Security Note
• https://osv.dev/vulnerability/CVE-2022-20145 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-03866 · Security Note
• https://anti-malware.ru/news/2022-06-07-111332/38847 · Note
• https://t.me/true_secator/3038 · Telegram Post